Use of lumbar trunk muscles in isometric performance of mechanically complex standing tasks

Schultz, Albert; Haderspeck, Karol; Warwick, David; Portillo, Deborah

Affiliations

¹Biomechanics Research Laboratory, University of Illinois at Chicago, Chicago, Illinois

Abstract and keywords

Ten subjects performed 25 tasks isometrically while standing. Those tasks imposed substantial extension, lateral bending, and twisting moments on the lumbar spine. Mechanically complex trunk muscle actions were called for to resist those moments. Biomechanical model analyses were used to predict the trunk muscle contraction forces needed to perform those tasks, and surface myoelectric activities were measured to validate those predictions. Predictions and measurements were linearly well correlated

Keywords: Spine; Biomechanical models; Trunk muscles; Electromyography

Links

DOI: 10.1002/jor.1100010111

PubMed: 6679579

Cited Works (5)

Year	Entry
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Cited By (30)

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